... 真空状态：vacum state 真空装货系统：vacuum packaging system 真空指示器：vacuum indicator ...
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The KRS 6-type vacuum pump designed run well and could satisfy requirement of vacuum equipment in packaging system.
设计完成的KRS 6型无油旋片真空泵，运行状况良好，能够满足包装系统的真空设备需求。
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